How to write product review for affiliates

http://www.affilorama.com/content-creation/writing-product-reviews

http://www.affilorama.com/introduction/examples-of-affiliate-sites-how-are-they-making-money

http://www.problogger.net/archives/2012/04/26/whats-the-best-type-of-affiliate-site-case-study/